2-Methylpropanoic acid
Isobuttersäure · Μεθυλοπροπανικό οξύ · Ácido 2-metilpropanoico · ایزوبوتیریک اسید · Acide 2-méthylpropanoïque · Izovajsav · イソ酪酸 · Isoboterzuur · Kwas izomasłowy · Ácido isobutírico · Acid izobutiric · Изобутерна киселина
| CAS | 79-31-2 |
|---|---|
| EC | 201-195-7 |
| UN | 2529 |
| Formula | C4H8O2 |
| Molar mass | 88.11 g/mol |
| LEL | 2.0 % vol |
| UEL | 10.0 % vol |
| Flash point | 58 °C |
| Autoignition temperature | 443 °C |
| Temperature class | T2 |
| Gas group | IIA |
| Relative density of the gas or vapour (air = 1) | 3.04 |
| GHS | Warning · H302, H312 |
Isobutyric acid is a branched fatty acid comprising propanoic acid carrying a methyl branch at C-2. It has a role as a volatile oil component, a plant metabolite and a Daphnia magna metabolite. Isobutyric acid appears as a colorless liquid with a light odor of rancid butter. Corrosive to metals and tissue.